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Table 3 Distribution of Outcomes in meta-analyses in the CDSR

From: Characteristics of meta-analyses and their component studies in the Cochrane Database of Systematic Reviews: a cross-sectional, descriptive analysis

Outcome Frequency
Signs/symptoms reflecting continuation/end of condition 3639 (16%)
Adverse events 2368 (11%)
Infection/onset of new acute/chronic disease 2215 (10%)
Biological markers (e.g. VO2 max) 2071 (9%)
General physical health (e.g. heart rate) 1921 (9%)
Obstetric outcomes 1477 (7%)
All-cause mortality 1278 (6%)
Hospital stay/process measures 1158 (5%)
Quality of life/functioning 958 (4%)
Pain 802 (4%)
Mental health outcomes 743 (3%)
Surgical/device related success/failure 737 (3%)
Withdrawals/dropouts 643 (3%)
Internal structure (e.g. radiograph outcomes) 504 (2%)
Major morbidity event (e.g. stroke) 502 (2%)
Composite (at least 1 non-mortality/morbidity) 460 (2%)
Composite (mortality/morbidity only) 224 (1%)
Cause-specific mortality 194 (1%)
Consumption (e.g. use of beta2 agonists) 190 (1%)
External structure (e.g. eczema) 160 (1%)
Other 94 (0.4%)
Satisfaction with care 86 (0.4%)
Resource use 29 (0.1%)
Total 22453